Improvement in sewing-machine



H. P. HENRIKSEN. SEWING MAGHINE'.

No. 104,590. X i Patenteuunqzl, 1870;

atwt. Gtiijfmz;

HANS PETER HENRIKsEN, or coPENHAGEN, DENMARK GHARLES EDWARD BROSSER, OFPARIS, FRANCE.

Lcttcrs Patent No. 104,590 dctol Jime 21, 1870.

IMPROVEMENT IN SEWING--MACHIKH The Schedizle referre to in these LetterePatent and'making'part of the same To all whom it may concern:

Bc it known that I, HANS PETER HENRIKSEN', of Copenhagen, in the Kingdomof Denmarlf, have invented certain Improvemeuts in -Sewing-h/Iachin'es,of which lthe following is a speciiication. I

i Nature (md Object of the Invention.

, My invcntion consists of certain devices, operating with a'heri'zontalreciprocatingvneedle, and with shuttle reclprocating in an arc onavertical plane, to cal-ry the sh'uttle-thread over the edge of thefabric and across the path of the needle, so as to produce a series ofbinding stitches' over the edge of the picces of fabric, orothermaterial operated. on. 'I

Description of the ccompmiying Di'moing.

Figure 1 isa side elevatlion of p Figure 2, a plan view; i' Figure 3, anend view looking Vfrom the front; Figures 4, 5, 6,' and 7, viewsillustratng the formation of the stitch; and i Figures 8 and 9,-detached views of parts of the machine.

the machine General. Description.

The frame of the machine consists of a. cast-iron base, z, tovwhich isholted a Vertical shallow case, W', the front plate, d, of the latterbeing detachable.

In suitable bearings turns the driving-shait V, which cxtends throughthe case NV, and has, on its rear end, a crank-wheel, V', and at the'front end a' cam-Wheel,

, D, and at the side of the Wheel V' is a band-pulley,

V", from which a band passes to a fly-wheel, V'".

In guides, at the rear side'ofsthecase NV, slides a plate, U, having,:at the front'end, an arm, o, to which is securecba horizontal needle,f, and, at the rear, a slot, thrrmigh which extends the crauked portionof the driving-shaft V. p v Within the case is'hung asegmental,Shuttle-carrier, T, in a suitable receptacle in which rests ashuttl'e, S, caxrying a bobbin, g, and bearing against the plate d, aportion, d', of which can he detached or displaced, to permittheintroduction and. withdrawal'of the shuttle.

In a projection, a, ori the face-plate d, slides a rod, A, of the formshown in the drawing, the rear end of the rod embracing the edges of thecam D, which imparts to the rod the movements described hereaftcr, andthe front end of the rod having a Ing or projection at one-side, inwhich are -recesses or deprossions o' a om, as shown in fig. l8.

.The rod A is jointed, near its front end, to one arm of a lever,`E,Vibratingon apin projecting from the face-plate d, and in a slot in theplate below this lever slides a pin, b, which is connected to 1 an armjointed to the cranked portion offhe shaft V, the op-v posite end of thepin extcnding iu'a slot formed in an arm projecting from theshnttle-canflier T, so that, as the shaft V revolves and 'the pin bslides back and forth, a reciprocating motion ina Vertical plane willthus be imparted to the shuttle-carrier.

In the'edge of thc plate ll and`of .the case W, is an Opening; for thepassage of the needlc, into which Opening the end of the arm A, duringpart'of the Operation of the machinc,'is inserted, as 'describedhereafter.

The fabric is held in a Vertical position (s0`as to be perforatedby't-he needle) between two clamps, G G', connected to each other by a'pin, H, and Vpressed together` at the lower eudsby a spring, o, the saidclamps sliding laterally iii-spitable guides at the vedge of the'caseW.4 v

- The required reciprocating sliding motion .Vis imparted to thecla'm'ps-by an L-shaped lever, P,`one arm, 71, of which enters a slot inthe rear clamp G, while the other ocoupies'a position adjacent to theplate U, through lugs on which extend.set-screws,-i i, 'the position ofthe latterregulating the extent ot' the'movem'ent of the lever and ofthe clamp. v

The Opening 'and closing of the jaws are eifected by a cam, N, on thedriving-shaft, which bears on an arm, O, connected to the outer clamp.

` To the case W is connecqed a plate, L, from which,L

. at right'angles, project twofarms, m n, occupying positions onopposite' 'sidesof a-central opening, s, for the passage of theneedlethe arm m being'bent downward and laterally, and the arm n being bentlat- 'erally, as showuin figr9. f*

To anarm,J, projecting from the case W is hunga thread-controllinglever, w'h'ich .is forkcd, oneV arm, t,I having au Opening, ro, for thepassage of thread, and the other arm, tj, beingcaused, by a spring, u,to bear `against apin, o', on the plate U.

To a lever, I, is also secured a spring,-t",. v

The needle-thrcad X passes through a tension de- ,vice, Q, and through'an eye, "iu, to the eye o of the ,tln'ead-controller,.and thenee; tothe needlc.

Operation.

Although this machine can he employed for sewing various articles, it isespecially adapted and designed for use in the manufiicture of -kid orleather gloves, `in which it is essential that the stitch shall passover the edge of. the material and be uniform, regular, strong, andelastic.

The. parts of the machine are brought to the `position9 shown in thedottedflincs, fig. 1, the pieccs of material to be secured together areplaccd between the `'clamps, the edges of fthc material bearing againstthe under sidesof the ho'rizontal parts of the arms A motion, in thedirection of its arrow, is impartcd ASSIGNOR Tsfi to the driving-shaft,when the needle f will penetrate the material near its edge, and, afterreaehing the limit of its inward motion, will begin to reeede, forming aloop through which the shuttle S passes, carrying with it theshuttle-thread Y, which, as the needle iswithdrawn, is thus looked tothe underside of the material by the needle-thread, as shown in fig. 7.

As the shuttle begins to descend the'head B of the arm A entcrs thereeess, laterall'y, and bencath the Shuttle-thread, and then advances,both forward and downward, until it strikes the arm m, when rit willhold the loop of thread Y in` such a position that the needle fpenetrates the same as it again passes into the fabric, the arm A, assoon as the thread is eaught, resuming its original position. Theshuttle again passes through the needle-thread, and the needle is thenwithdrawn, locking the thread Y to the r outer side of the material, asshown in fig. G.

The arms m n serve as loop-guards, to prevent the threads from twisting,knotting, or becomingentangled, a matter` of considerable importance Vinthe manufacture of such articles as gloves, where every stitch isexpose'd, and where a defective stitch will injure the article. The saidarms also prevent the fingers and other parts of the glove, as thelatter is' operated on, from coming in the path of and being canght bythe needle, while they also guide the material After the needle haspassed into and been withdrawn from the material, the clamps G G'aremovcd, laterally, the length of one Stitch, when the' needle againpenetrates the material, and holds it while the outer clamp is raised,and both slide back to their first position and grasp the materialpreparatory to another moxjement of a like character.

' By adjusting the screws i i the length of the stitch may he regulatedat pleasnre. The thread-cohtrolling lever I releases'the threadto permitthe formation of the loop, and takes it up, after the loop is made,drawin'g the stitch close to the fabric, and holding the thread so thatit cannot be ca'ught or entangled.

C'latms.

1. The arm A, constructed as describcd, in combination with the lexjcrE, cam D, sliding pin b, and guide a, as set forth. v

2.' The combination of the needle, Shuttle, and arm, operating as abovedcseribed, and elamps G G', which clasp the fabrie and carry it,laterally, while the needle is at the limit of its outward motion, andafter the needle has penetrated the fabric, release the same and moveback to their first position.

3. The arm U, its needle f, and pin v,'in combinationw'ith the lever I,its arms t t', andsprings u.t, arranged as described. v

4. The plate L, its arms m n, and recess s, arranged on the case W, andoperating with the arm A and needle f, as described.

5. Thecombination of the clainps G G',v sliding.

plate U, set-serews i i, and lever P, as specified.

6. The :combination of the subject matter of the fifth claim, with thearm O, and cam N, as set forth.

7. The arrangement and combination'of the frame W, shut-tle-earrier T,and its shuttle S, sliding arm U, needle f, sliding-elamps G G', and armA,-all substantially as described. I

In testimony whereof I have hereunto set my hand before' two subscribingwitnesses.

HANS PETER HENRIKSEN.

Witnesses: F. E. BoGGILo,

Translatcur. O. N. SCHMIDT,

Bag/binder.

